# K903323: Resectoscope Loops

- Pathway: 510(k) (Traditional)
- Applicant: Olympus Corp.
- Decided: Oct 1, 1990 after 68 days
- Product code: KNS (Unit, Electrosurgical, Endoscopic (With Or Without Accessories))
- Device class: 2
- Regulation: 21 CFR 876.4300
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
21 later devices descend from it; 4 cite it directly.
0 of 22 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K100275: Working Element, Resection Button Electrode for Plasma Vaporizaton, HF-Resection Electrode Loops and Bands (2010), 15 descendants of its own
- K152092: Resection Electrodes (2015), 5 descendants of its own
- K102781: Resection Button Electrode for Plasma Vaporization, HF-Resection Electrode Rollers and Needles, Loops and Bands (2011), 5 descendants of its own
- K093181: Gyrus Acmi PK Button Electrode (2010), 4 descendants of its own
- K171965: Resection Electrodes with HF cable (2017), 3 descendants of its own

Source page: https://510kreport.com/device/K903323
Methodology: https://510kreport.com/methodology